letting in on (verb) advise: offer information
Detalii: advise (verb) means 'to offer advice to or counsel'; advice (noun) is an opinion about what could or should be done about a situation or problem
Sinonime: defenseless, exposed, fluctuant, frail, hazardous, immature, infirm, insubstantial, loose*, open to attack, perilous, precarious, rickety, rocky, rootless, shaky, tottering, unguarded, unprotected, unreliable, unsafe, unshielded, unsound, unstable, unsteady, unsure, vacillating, vulnerable, wavering, weak, wobbly
Antonime: keep mum, keep quiet, keep secret